Colour Demonstrator - 1.5mm mainsale TWSBI Blue-Black is an iron

TWSBI Blue-Black is an iron gall ink and is water-resistant

This shade of green is an expression of the lush green pine trees in the Maiko Park across the Akashi Strait

This one works well with our Noodlers Ink bottles (both glass and plastic versions)

ensuring a style to suit every preference

Discover Dusky Pink

Colour Demonstrator - 1.5mm mainsale TWSBI Blue-Black is an ironThe OPUS 88 Koloro Demonstrator is a dedicated eyedropper pen with a an acrylic body. The semi transparent body also allows for ink to be seen swishing. This pen utilises a #6 branded German nib for an amazing writing experience, and comes with an eyedropper tool included. Note: The demonstrator is slight larger than the coloured series. The cap also cannot be posted.